Linaro 12.04: PandaBoard shuts down because of temparature

[Murat Belge]

I used Linaro 12.03 LEB image successfullt with my PandaBoard Rev. A4 board. Today, I created a new SD card image using Linaro 12.04 release using the following command "sudo linaro-media-create --mmc /dev/sdb --dev panda --hwpack hwpack_linaro-lt-panda-x11-base_20120505-32_armhf_supported.tar.gz --binary linaro-precise-ubuntu-desktop-20120426-119.tar.gz". When I boot the board with the SD card created using the command above, the boot eventually fails with the following trace:

Loading, please wait...
[ 7.478179] udevd[890]: starting version 175
Begin: Loading essential drivers ... done.
Begin: Running /scripts/init-premount ... done.
Begin: Mounting root file system ... Begin: Running /scripts/local-top ... done.
Begin: Running /scripts/local-premount ... hwclock: select() to /dev/rtc0 to wait for clock tick timed out: No such file or directory
done.
[ 12.965332] EXT4-fs (mmcblk0p2): INFO: recovery required on readonly filesystem
[ 12.973327] EXT4-fs (mmcblk0p2): write access will be enabled during recovery
[ 18.483245] Initial hdmi_get_current_hpd says disconnected
[ 19.099334] EXT4-fs (mmcblk0p2): recovery complete
[ 19.822906] EXT4-fs (mmcblk0p2): mounted filesystem with ordered data mode. Opts: (null)
Begin: Running /scripts/local-bottom ... done.
done.
Begin: Running /scripts/init-bottom ... done.
fsck from util-linux 2.20.1
rootfs: clean, 179198/238080 files, 503289/951296 blocks
Waiting for network configuration...
 * Starting bluetooth daemon [ OK ]
 * Starting mDNS/DNS-SD daemon [ OK ]
 * Starting configure network device security [ OK ]
 * Starting configure network device [ OK ]
 * Stopping cold plug devices [ OK ]
 * Stopping log initial device creation [ OK ]
 * Starting network connection manager [ OK ]
 * Starting configure network device security [ OK ]
 * Starting configure virtual network devices [ OK ]
 * Stopping configure virtual network devices [ OK ]
 * Starting save udev log and update rulesû

After this the board shuts down. In some instances of trace, there is a line about temprature alert.

I do not experience this shutdown phenomena with Linaro 12.03.

[Jassi Brar (jassisinghbrar)]

IIUC hwpack_linaro-lt-panda-x11-base_20120505-32_armhf_supported.tar.gz is built with <email address hidden> as basis.
tilt-3.3 has since moved on and contain some relevant patches....
  138fc6a config REGULATOR_DUMMY is required
  32c2632 revert 0001 UBUNTU HACK disable 1.2 and 1.5 GHz OPP
  2d0a80c config disable CPU_IDLE until it stops trashing smartreflex
  dbfdd83 OMAP: PMIC: Register only the map relevant to chip
  6df0b79 Weed out OMAP4460_SEVM_PALMAS option
  cd8afd8 omap4: blaze: enable SR in board file
  8f18ff9 omap4: panda: enable SR in board file
  83e3e34 HACK: disable 1.2 and 1.5 GHz OPP
  0c9102a omap4plus defconfig defaults
  a48e445 Restore omap4460_mpu_dpll_set_rate

[John Rigby (jcrigby)]

The CI job had picked up the new kernel however a problem in the linaro packaging was preventing the package from getting uploaded after the build. This is now fixed so we should have an updated kernel soon

[Ben Gamari (bgamari)]

Can this be closed now?